Were Those UFO Babies StepChildren?

For twenty years, it seemed as if my ancestor Ira Sargent was dropped off by a UFO in Hancock County, Illinois, in 1880.

Turns out he wasn’t.

He was in the 1850 and 1860 United States Census listed under the last name of his step-father–whom his mother had married in 1849. Until I discovered the last name of the step-father, I was unable to find Ira.

Is it possible that your UFO ancestor wasn’t dropped off by aliens but was instead listed in records as a child under his (or her) stepfather’s last name? And that the first time they used their “birth name” in a record was when they married?